ASTROSAT CZTI

Data Quality Report

Orbit 04369

Creation date: 2024-06-27T14:41:01.020428
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_252T01_9000000544_04369cztM0_level2.evt modeM0/AS1G05_252T01_9000000544_04369cztM0_level2_quad_clean.evt
Size (bytes)456,333,12057,222,720
Size435.2 MB 54.6 MB
Events in quadrant A4,687,878320,501
Events in quadrant B2,946,863337,617
Events in quadrant C2,904,065328,783
Events in quadrant D2,868,757321,315

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179112
B0125191
C0126141
D0126661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60703455.683690%
B6070480.790774%
C6070450.741351%
D6070420.691928%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7280 6070 278 278 3.82% 4.58%
B 7280 6070 0 0 0.00% 0.00%
C 7280 6070 0 0 0.00% 0.00%
D 7280 6070 17 17 0.23% 0.28%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 1780992 12082.83 725 712 147.3
A 15 234 87010 585.71 725 712 147.3
A 0 50 16339 106.06 725 712 147.3
B 15 204 21170 141.8 754 738 144.1
B 12 111 12200 79.55 754 738 144.1
B 15 54 9994 64.24 754 738 144.1
C 12 4 42864 254.66 715 721 165.5
C 9 16 22848 133.71 715 721 165.5
C 5 175 21880 127.86 715 721 165.5
D 2 136 47216 268.37 714 693 173.4
D 4 95 22404 125.24 714 693 173.4
D 2 63 22062 123.27 714 693 173.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter